Date: Tue, 3 Sep 2002 06:40:04 -0700 (PDT) From: "=?ISO-8859-2?Q?Pawe=B3_Ma=B3achowski?=" <pawmal@unia.3lo.lublin.pl> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/42260: 4.6-STABLE kernel panic, fxp related Message-ID: <200209031340.g83De4dj012795@freefall.freebsd.org>
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The following reply was made to PR kern/42260; it has been noted by GNATS.
From: "=?ISO-8859-2?Q?Pawe=B3_Ma=B3achowski?=" <pawmal@unia.3lo.lublin.pl>
To: freebsd-gnats-submit@FreeBSD.org
Cc:
Subject: Re: kern/42260: 4.6-STABLE kernel panic, fxp related
Date: Tue, 3 Sep 2002 15:39:20 +0200
OK, as Ian Dowse suggested, I've tried to use the `date'
in my cvsup file to find out the latest RELENG_4 stable
for me.
The procedure was:
0) edit the supfile with the proper date tag
(for example, date=2002.08.11.10.20.00)
1) fetch src-all
2) make clean and remove everyting from /usr/obj
3) uncomment the `makeoptions DEBUG=-g' in GENERIC config file
4) make kernel
5) reboot
Some of my `checkpoints' were:
----------
2002.07.* RELENG_4 looks stable
----------
2002.08.05 RELENG_4 looks stable
----------
2002.08.08 RELENG_4 looks stable
----------
2002.08.08.18.45 RELENG_4 looks stable
----------
2002.08.09.00.00 RELENG_4 looks stable
----------
2002.08.09.02.11 cannot compile,
known and fixed (USB)
----------
2002.08.09.12.00 RELENG_4 is unstable,
double kernel panic.
#6 0xc02eb420 in acquire_lock (lk=0xc040101c)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:266
266 lk->lkt_held = CURPROC->p_pid;
(kgdb) up 10
#16 0xc0204e20 in m_freem (m=0x0) at /usr/src/sys/kern/uipc_mbuf.c:706
706 if (mcl_pool_now < mcl_pool_max && m->m_next == NULL &&
----------
2002.08.10.12.35 RELENG_4 is unstable,
kernel panic
I've tried to compile with:
static int mcl_pool_max = 0;
but kernel happened:
(kgdb) up 6
#6 0xc0207737 in sosend (so=0xcccf1a80, addr=0x0, uio=0xcdf0ced4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.11.10.20 RELENG_4 is unstable,
kernel panic
(kgdb) up 6
#6 0xc0207737 in sosend (so=0xcccf1a80, addr=0x0, uio=0xcdf03ed4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.12 RELENG_4 is unstable,
double kernel panic
(kgdb) up 6
#6 0xc020485f in m_getcl (how=1, type=1, flags=2)
at /usr/src/sys/kern/uipc_mbuf.c:586
586 MCLGET(mp, how);
(kgdb) up 16
#22 0xc0207737 in sosend (so=0xcccf3dc0, addr=0x0, uio=0xcdf0ded4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.13 RELENG_4 is unstable,
double kernel panic
(kgdb) up 6
#6 0xc020489b in m_getcl (how=1, type=1, flags=2)
at /usr/src/sys/kern/uipc_mbuf.c:589
589 MCLGET(mp, how);
(kgdb) up 16
#22 0xc0207773 in sosend (so=0xcccf3dc0, addr=0x0, uio=0xcdf0ded4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.14 RELENG_4 is unstable,
kernel panic
(kgdb) up 6
#6 0xc02077d3 in sosend (so=0xcccf1900, addr=0x0, uio=0xcdf0ced4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.15 RELENG_4 is unstable,
double kernel panic
(kgdb) up 6
#6 0xc0204917 in m_getcl (how=1, type=1, flags=2)
at /usr/src/sys/kern/uipc_mbuf.c:589
589 MCLGET(mp, how);
(kgdb) up 16
#22 0xc02077ef in sosend (so=0xcccf1c00, addr=0x0, uio=0xcdf0ced4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.16 RELENG_4 is unstable,
kernel panic
(kgdb) up 6
#6 0xc02077ef in sosend (so=0xcccf1a80, addr=0x0, uio=0xcdf0ced4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.20 RELENG_4 is unstable,
double kernel panic
(kgdb) up 6
#6 0xc0204963 in m_getcl (how=1, type=1, flags=2)
at /usr/src/sys/kern/uipc_mbuf.c:589
589 MCLGET(mp, how);
(kgdb) up 16
#22 0xc020783b in sosend (so=0xcccf1c00, addr=0x0, uio=0xcdf0fed4, top=0x0,
control=0x0, flags=0, p=0xcc2ff1e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
----------
2002.08.30 RELENG_4 is unstable,
kernel panic
----------
2002.09.03 RELENG_4 is unstable,
kernel panic
(kgdb) up 6
#6 0xc0227f87 in sosend (so=0xcccdab40, addr=0x0, uio=0xcda28ed4, top=0x0,
control=0x0, flags=0, p=0xcc2e81e0) at /usr/src/sys/kern/uipc_socket.c:567
567 MCLGET(m, M_WAIT);
>sysctl -a | grep pool
kern.ipc.mcl_pool_max: 0
kern.ipc.mcl_pool_now: 0
>netstat -m -M vmcore.26 -N /usr/obj/usr/src/sys/GENERIC/kernel.debug
161/640/10048 mbufs in use (current/peak/max):
161 mbufs allocated to data
159/326/2512 mbuf clusters in use (current/peak/max)
812 Kbytes allocated to network (10% of mb_map in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
vmstat -M vmcore.26 -N /usr/obj/usr/src/sys/GENERIC/kernel.debug
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad0 md0 in sy cs us sy id
1 0 0 26188 36156 16 0 0 0 28 0 0 0 257 509 176 0 2 97
----------
So, it looks as if the problem was introduced beetween
2002.08.09 00:00 and 2002.08.10 12:35.
This could by interesting:
Edit src/sys/dev/fxp/if_fxp.c
Add delta 1.110.2.24 2002.08.09.02.04.20 luigi
Edit src/sys/kern/uipc_mbuf.c
Add delta 1.51.2.17 2002.08.09.02.11.08 luigi
Add delta 1.51.2.18 2002.08.10.12.34.31 iedowse
The instruction pointer in panic message points to sosend()
and sometimes to m_getcl().
Crashdumps were removed from my HDD cause I don't have enough
space to keep all 26 cores. I have screenshots with `bt' info
from gdb for almost every panic message. It's also easy for me
to reproduce these panics on machine described in this PR.
Was this helpfull?
--
Paweł Małachowski
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